20155702920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2126129}}^1$

素因数の和:2126222

約数の個数: 64

約数和(自身を含む): 61232544000

約数和(自身を除く): 41076841080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 79, 120, 158, 237, 316, 395, 474, 632, 790, 948, 1185, 1580, 1896, 2370, 3160, 4740, 9480, 2126129, 4252258, 6378387, 8504516, 10630645, 12756774, 17009032, 21261290, 25513548, 31891935, 42522580, 51027096, 63783870, 85045160, 127567740, 167964191, 255135480, 335928382, 503892573, 671856764, 839820955, 1007785146, 1343713528, 1679641910, 2015570292, 2519462865, 3359283820, 4031140584, 5038925730, 6718567640, 10077851460, 20155702920]

約数ペア:

[(1, 20155702920), (2, 10077851460), (3, 6718567640), (4, 5038925730), (5, 4031140584), (6, 3359283820), (8, 2519462865), (10, 2015570292), (12, 1679641910), (15, 1343713528), (20, 1007785146), (24, 839820955), (30, 671856764), (40, 503892573), (60, 335928382), (79, 255135480), (120, 167964191), (158, 127567740), (237, 85045160), (316, 63783870), (395, 51027096), (474, 42522580), (632, 31891935), (790, 25513548), (948, 21261290), (1185, 17009032), (1580, 12756774), (1896, 10630645), (2370, 8504516), (3160, 6378387), (4740, 4252258), (9480, 2126129)]